Improvement in shutter-fastening



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Leners Patent No. 88,152, dated March as, 1869.

IMPROVEMENT SHUTTER-I'ASTENING.

The Schedule referred to in theme Letters Patent and making part of the same.

To all whom it may concern Be it known that I WILLIAM C. FISHER, of Charlestown, in the county of Middlesex, and State of Massachusetts, have invented cer'tain Improvements in Fasteners for Shutters, 8vo., of which the following is afull, clear, and exact description, reference being had to the accompanying drawings, making part'of this specification, in which- Figure lis a verti'cal section, representing a shutter, secured in front of 'a window-sash by my improved fasterung.

Figures 2 and 3 are perspective views of my fastening in detail. Y

Figure 4, modication to be referred to.A

My invention has for its obj ect to provide a reliable means of securing window-shutters in place, and liberating them, (irrespective of their thickness,) in a simple and expeditious manner; and

My invention consists in a bolt, provided with two or more notches, or with two or more holes, in connection with a weighted pawl, or other suitable catch, the bolt passing through the shutter and window-sash, or parts adjacent thereto, and extending suiiiciently into the building to allow a weigh tedpawl, or other device, to engage with one of its notches, or holes, thus effectually locking Athe bolt, so as to render it impossible to remove the shutter, the. said catch being instantly disengaged from its notch, or hole by a person within the building, when it is desired to remove the shutter from its position in fronty of the window, the said bolt being of asuflcient length to allow its inner end to extend through a shutter and sash, whether of greater or less thickness, in contradistinction to a bolt which will only answer forthe particular shutter and sash for which it was tted.

To enable others skilled in the art to understand and use my invention, I will proceed to describe the manner in which I have -carried it out.

In the said drawings- A is a window-frame,

. B, the sash, and l C, the shutter of a window of a store or other build-l xgfrlhrough the shutter, and near its lower edge, is bored acircnlar hole, a, through which, and a similar hole, b, in line therewith, in the lower portion c of the sash, passes a bolt, D the head :l of which ts snugly linto a recess formed in a metal plate, E, screwed tothe outside of `the shutter, the lnner end of the bolt passing through an opening, f, in a metal plate, lGr, screwed to the inside of the lower cross-bar ofthe sash.

The inner end of the bolt is provided with a series of notches, c,the length of the bolt being suliicient to allow its notched portion to extend far enough beyond the interior of the lower cross-bar of the sash to enable the edge of a weighted pawl,vH, to fall therein, the said pa'wl being pivoted', at g, to the metal plate G, just above the line where the notched end of the 'bolt D passes through.

In close proximity to the edge of the pawl is formed an enlargement, h, of a cylindrical shape, by which construction the weight of the enlargement will always insure the descent of the edgeofthe pawl, and cause it to engage with one of the notches e, when the bolt extends through to the interior.

When the shutter is to be removed, it is simplynecessary for the operator to place his linger under the enlargementh, and raise it sufficiently to-dsengage the edge of the pawl from the notch, as seen in red, fig. 1, when the bolt may be pressed outwardly, and on being removed, tbe operator presses his hand upward on a projecting plate, i, to lift the shutter from the windowsill, on which it rests, immediately after which the shutter is inclined outwardly and drawn down, so as to allow its upper edge to pass the projecting cleats k.

It is evident that by making the bolt D long enough, and providing it with a number of notches, e, it may be used for secung shutters, whatever be the thickness of the shutter or sash through which it passes'.

In iig. 4 is represented a circular bolt, provided with a series of notches, or grooves, extending around it. When such a formed boltis employed, it is advisable to make the lower edge of the. pawl of a concave semicircular form, in order that it may have a more extended bearing and holding-surface in contact with the bolt.

My vimproved fastening is exceedingly simple and reliable, the operator only being required to press the notched end past the pawl, thereby raising it suiciently until the required notch e' comes under its edge, when it drops therein, and the bolt and shutter are securely locked in place. i

Instead of a weighted pawl, a latch, sliding plate, or other suitable catch, may be used to engage with the notches in the bolt, and the latter may be provided with holes, instead of notches, anda catch especially adapted therefor be employed; and my fastening may be used for securing other articles or things than shutters, without departing from the spirit of my invention;

My improved fastening may be readily applied to the various descriptions of shutters now in use, irrespective of their thickness, and at a less cost than the ordinary means now employed for fastening them.

I am aware that abolt, provided with one notch, has been used, in connect-ion with a spring-catch, for secur- .ing shutters, but such a bolt can only be applied to the particular shutter for which it was intended, as the distance of the notch from the head must be exactly fixed to conform to the thickness of the sash and shutter, to allow the catch to engage therewith.

O' lwim.

What I claim as my inventiontand vdesire to secure by Letters Patent, as a new article rof manufacture, is-

The within-described fastening, consisting essentially of a bolt, D,"^`provided withtwo or more notches and a weighted pawl, H, substantially as set forth. WM, O. FISHER. Witnesses:

l?, E. TESCHEMACHER, W. J. CAMBRIDGE. 

